Debt - Schedule of Debt (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021		Dec. 31, 2020		Oct. 31, 2016
Debt Instrument [Line Items]
Finance lease obligations		$ 1		$ 1
Debt and financing lease obligations, gross		5,155		5,156
Add: unamortized premium		3		3
Less: unamortized deferred financing costs and discount		(37)		(38)
Debt		5,121		5,121
SF CMBS Loan [Member]
Debt Instrument [Line Items]
Debt, gross		$ 725	[1]	725	[1]	$ 725
Debt instrument, interest rate, stated percentage	[1]	4.11%
Maturity Date	[1]	2023-11
HHV CMBS Loan [Member]
Debt Instrument [Line Items]
Debt, gross		$ 1,275	[1]	1,275	[1]	$ 1,275
Debt instrument, interest rate, stated percentage	[1]	4.20%
Maturity Date	[1]	2026-11
Mortgage Loans [Member]
Debt Instrument [Line Items]
Debt, gross		$ 508		509
Debt instrument, weighted average interest rate		4.16%
Maturity Date, start year	[2],[3]	2021
Maturity Date, end year	[2],[3]	2026
2025 Senior Secured Notes [Member]
Debt Instrument [Line Items]
Senior Secured Notes	[4]	$ 650		650
Debt instrument, interest rate, stated percentage	[4]	7.50%
Maturity Date	[4]	2025-06
2028 Senior Secured Notes [Member]
Debt Instrument [Line Items]
Senior Secured Notes	[4]	$ 725		725
Debt instrument, interest rate, stated percentage	[4]	5.88%
Maturity Date	[4]	2028-10
Finance Lease Obligations [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		3.07%
Maturity Date, start year		2021
Maturity Date, end year		2022
2019 Term Facility [Member]
Debt Instrument [Line Items]
Debt, gross	[5],[6]	$ 670		670
Maturity Date	[5],[6]	2024-08
2019 Term Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	[5],[6]	2.65%
Revolver [Member]
Debt Instrument [Line Items]
Debt, gross	[6]	$ 601		$ 601
Maturity Date, start year	[6],[7]	2021
Maturity Date, end year	[6],[7]	2023
Revolver [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	[6]	3.00%

[1] In October 2016, we entered into a $725 million CMBS loan secured by the Hilton San Francisco Union Square and the Parc 55 Hotel San Francisco (“SF CMBS Loan”) and a $1.275 billion CMBS loan secured by the Hilton Hawaiian Village Waikiki Beach Resort (“HHV CMBS Loan”).

[2] Assumes the exercise of all extensions that are exercisable solely at our option. The mortgage loan for Hilton Denver City Center matures in 2042 but is callable by the lender beginning August 2022.

[3] In December 2020, our joint venture executed a forbearance agreement for the $12 million loan secured by the Doubletree Spokane in which the lender agreed to forbear exercising its rights and remedies arising from the joint venture’s non-payment of the loan at maturity due to market conditions until October 6, 2021. Beginning April 2021, the interest rate on the loan will be accrued at the default rate of 6.55%. Additionally, in January 2021, we ceased making debt service payments for the $75 million mortgage loan secured by the W Chicago City Center.  Failure to make debt service payments constitutes an event of default. While Park hopes to negotiate an amendment with the lender, there can be no assurances that an agreement will be reached.

[4] In May and September 2020, our Operating Company, PK Domestic and PK Finance Co-Issuer Inc. (“PK Finance”) issued an aggregate of $650 million of senior secured notes due 2025 (“2025 Senior Secured Notes”) and an aggregate of $725 million of senior secured notes due 2028 (“2028 Senior Secured Notes”), respectively.

[5] In August 2019, the Company, our Operating Company and PK Domestic entered into a term loan facility (the “2019 Term Facility”).

[6] In May 2020, we amended our credit and term loan facilities to add a LIBOR floor of 25 basis points.

[7] In September 2020, we increased our aggregate commitments under the Revolver by $75 million to $1.075 billion and extended the maturity date with respect to $901 million of the aggregate commitments for two years to December 2023, including all $75 million of the increased Revolver commitments. The maturity date for the remaining $174 million of commitments under the Revolver is December 2021.